William



l @uiten tetra @anni @filtra- Laim Patent No. 75,847, ma March 24, 186e.

IMPROVEMENT IN ATTAGHING DOOR-ENOES TU LSPINDLBS'.

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TO ALILWHOM IT MAY CONCERN:vv A Y Be it known that I, WILLIAM Boon, of Newtown, in the county of Queens, and State of New York, hav invented anew and useful Improvement on Door-Knobs, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specicatiom'and in which- 4Figure 1 represents a. longitudinal section of a door-knob, in part, constrcted according to my improve ment, and I Figure 2a longitudinabview of the socket in' whichthespindle fits, vwith its vsecuring wedges detached.

Similar letters of reference indicate corresponding parts.

This improvement relates tedoor-knob's in which the spindle is connected with the knob or knobs proper through the intervention of an independent socket or sockets madefast tothe latter. .Such is theA ordinary construction, in which the handles or knobs proper are made of, say, porcelain, glass, or other equivalent material, and the socket tothe knob, in `which the spindle fits, and to which it is attached, is made of metal. In such constructions the ordinary mode of connecting the socket or sleeve with the knob proper, by cement or pouring in molten lead, is not only Idefective, as regards getting or working loose, by reason of the softness or flexibility of, say, the lead, hut it curtai-ls, to the extent of such lling, the adjustment of the spindle, usually made with two or three holes in it to receive' alocking-scre'w, withinor relatively to the one knob proper, toV suit different thicknesses of door. v c

The object of this improvement is Vto remedy these defects, and the invention consists in a peculiar construc tion of the tubularsocket or sleeve, and connection of the same with the handle or knoh proper by a. wedge or' Wedges, acting on theside or sides of the socket, to'spread or expand the'm, and so produce the lock of thesleeve with the handle, with-enlarged provision for adjustment of the spindle through the sleeve or socket of at:

least one handle'.

Referring to theaccompanyingV drawing, A represents the one handle of a-door-knob, and Iwhich may be -the knob proper, with which the spindle is usually connected by a locking-screw, tting through the socket or sleeve, B, of said handle. Both handles or knobs proper may be similarlyV connected with their sleeves, but it,

will suiice hereto refer to the removable handle'of the door-knob, in which the spindle is' or inay be adjusted, said spindle being permanently attached, -it .may be, to the sleeve 'of the other handle.v This 4knob proper, or handle, A, may be of porcelain, glass, or ,other suitable material, `and its socket or sleeve B o f'metal, as also the spindle which'ts thereinsad socket entering an inwardly-expanding or swelled-ont recess, b, in thehandle A, but, instead of being secured therein by cement or molten metal, inthe; ordinarymanner, which forms' not only an insecure connectio'n,but also,-as'applied tothe removable handle, by lling u'p a portion of the-'interior of thesocket, curtails thev space for reception and adjustment of the spindle, I split or divide, as at c, on prefferably two and opposite sides,.though itimight be only one, therinner end of said socket, or, in other Words,

give an elastic or-wing-like character to said sides of thevsocket, so that, -on fitting in wedges C between said wings and thel sides of the socket lying at right angles thereto, and driving home the socket or the handle thereon, the back' o f the recess b will, by its action on the thick ends of the Wedges, establish the lock of the socket with the handle, byspreading out its split sides toill the swelled-out portons of the recess b.

By this construction, it will be seen, not only is a permanent and secure 'locklestablished for the sleeves with the handlesyof the door-knob, but a long and uninterrupted bearing obtained for the spindle through the sleeves into, it may be, the very handles' themselves, the split'sides of the socket and arrangement of the wedges 'not interfering with the passage of the spindle through the sockets, which advantage is the more conspicuous in case of the removable handle or knob proper, as it admits of a. more varied or longer adj ustnient of the spindle relatively to the handle, to suit diterentthicknesses of doors, for, by it, the one locking-'screw may be made to fit any one of a series of holes in the spindle,'(shown in red lines,) within the 'range of the whole length of the' 'sleeve or socket. This makes a doorknob more generally adaptable, orrreduces the number of spindles of different lengths necessary to'suit different thicknesses of doors, the utility and gain of which it is unnecessary to comment upon.

What ishereclaimed is'- The metallic socket B, constructed with split sides c, for the entrance of the wedges C, so arranged that its interior socket-formation remains the same, whilstA its sides are forced outward by driving in the socket to form a rigid'connection between it and the knob, substantially as shown and described for the purpose set forth.

WM. BOCH. Witnesses J. W. CooMs, A. LE CLERC. 

